Edwin Cartlidge

1 day ago | optica-opn.org | Edwin Cartlidge

Researchers in the United States have built a compact source of single photons at telecom wavelengths that might in future be used to make the nodes in a quantum network (Opt. Quantum, doi: 10.1364/OPTICAQ.546774). By generating each photon alongside a visible counterpart, the device allows heralding via fairly compact detectors and could potentially hook up diverse quantum computers over long distances.

2 weeks ago | optica-opn.org | Edwin Cartlidge

Scientists in the United States have shown how a coronagraph using what is known as spatial mode sorting could be used to image extrasolar planets at quantum limits (Optica, doi: 10.1364/OPTICA.545414). They say that their scheme should make it easier to study very faint exoplanets, including those similar to Earth. Researchers to date have discovered nearly 6,000 planets orbiting stars other than our sun.

3 weeks ago | optica-opn.org | Yijie Shen |Edwin Cartlidge |Jeff Hecht

Feature Articles Topological Light Waves: Skyrmions Can Fly Harnessing an emerging class of structured waves as counterparts of localized topological quasiparticles could revolutionize information technology. by Yijie Shen Squeezing on a Chip Bulk optics gives us light beyond the quantum limit, but integrated photonics promises an extended reach—from biological imaging to quantum computing.

3 weeks ago | optica-opn.org | Edwin Cartlidge

Skip To Content Feature Bulk optics gives us light beyond the quantum limit, but integrated photonics promises an extended reach—from biological imaging to quantum computing. The squeezed light source in LIGO’s vacuum chamber. [W.

1 month ago | optica-opn.org | Edwin Cartlidge

Scientists in Sweden have reportedly shown how to amplify laser light at telecom wavelengths over very high bandwidths by exploiting nonlinearities in single-mode spiral-shaped waveguides on a photonic chip (Nature, doi: 10.1038/s41586-025-08824-3). They say that their scheme could improve telecommunications and also be applied to medical imaging and material characterization.